Imventor



3 Sheets-Sheet 1.

(No Model.)

S. HALEY. LEATHER DRESSING MAeHmE; No. 325,675. Patented Sept. 8, 1885.

WITNESSES #NVENTO 3M Rac wa u. PETERS. PhntwLilhognpher. Wuhin tun. 0 a

(No Model.) 3 Sheets-Sheet 2.

S. HALEY.

* LBATHERDEESSING MACHINE. N0. 325,675. Patented Sept. 8, 1885.

FIG 6. FIG. 7.

wrruzsszs mvzmon emw .. tif Mr6 g (No Model.) 3 Sheets-Sheet 3. S.HALEY.

LEATHER DRESSING MACHINE.

,675. Patented Sept. 8, 1885.

l N V E N TO R 7M7 Z By his .dllurn 61/5,

N. PETE-R5, mom-umn n m, Wuhmglm n c.

WITNESSES:

JON

U ITE STATES Brien.

FATENT LEATHER-DRESSING MACHINE.

EEPECIFICATION forming part of Letters Patent No. 325,675, datedSeptember 8, 1885.

Application filed April 14, 1885. (No model.) I'atcnt'ed in EnglandMarch 11, 1884, No. 4,677.

To all whom it may concern:

Be it known that I, SAM HALEY, a subject of the Queen of Great Britain,residing in Bramley, near Leeds, England, have invented certain new anduseful Improvements in Ma chinery for Preparing and Dressing Leather, ofwhich thefollowing is a specification.

This invention has reference to that class of machinery employed inscouring, resetting stoning, and otherwise preparing hides and leather,in which are commonly employed ro tating and vertically adjustabletables, duplicate sets of stones, and stones and brushes, which arecaused to move back and forth over the leather; and my object is in partto provide such a machine with an improved headstock, in part toprovideimproved connectingrods for operating the headstock, and in partto provide an improved means for operating the tab1es,whereby everyportion of the table may be conveniently brought under the tools, andwhereby one table may be shifted out of the way while the other is underthe tools, all as will be hereinafter more fully described and carefullydefined in the claims.

In the drawings which serve to illustrate my invention, Figure 1 is anelevation of one side of my-machine. Fig. 2 is an elevation of the otherside. In this view the stones and their holders are not shown. Fig. 3 isa plan of the machine with the upper parts removed. This view-isdesigned mainly to illustrate the arrangement whereby the tables may beinterchanged. Fig. 4 is a front view of the headstock and head of themachine on a larger scale than the first three figures. Fig. 5 is asectional elevation of the head-stocl;,the plane of the; section beingindicated by line 5 5 in Fig. 4:. Figs. 6, 7, and 8 are detached detailviews, the first two being respectively front and side elevations of thedevice for effecting the vertical adjustment of the bed, and the last aside elevation of the connecting-rods for actuating the head-stock andits carriage.

1 represents the bed-plate of the machine and the arm or head in whichthe head-stock and carriage play. This head extends out horizontallyover the table on which the leather-hide is placed while being treated.

I will first describe the head-stock and its appurtcnan ees and themeans for operating it.

The head stock comprises the standard 3, which carries the clamps 4,which receive and hold the adjustablymonnted stones 5. The standard 3 ismounted to rock or oscillate on studs or journals 6, rotatively mountedin a carriage, 7, which is mounted to reciprocate horizontally, in themanner of a cross-head on guides 8 on the head 1. This latter issuitably shaped and hollowed to receive the head stock and its carriage,and to provide room for its movement to and fro. Reciprocating motion isimparted to the carriage 7 through the medium of a crank or crank-wheel,11,011 the main shaft 42, and a connecting-rod, 9, which is coupled atone end to a wrist-pin,10, on said crank, and at the other to saidcarriage 7. In order to impart to the head-stock a rocking motion on itsstuds 6 in carriage 7, whereby the one set of stones may be lifted offthe leather at the end of the stroke and the other set of stones appliedfor the return stroke, the stones are mounted, as best seen in Fig. 5,on opposite sides of the center of oscillation (on studs 6) of theheadstock, and means are provided for imparting the oscillatory mo tionto the head-stock, which I will now describe. A connecting-rod, 12, hasits one end coupled to the upper part of the standard 3 at a point abovethe center of oscillation, and at its other end it has a strap whichembraces an eccentric 13, mounted on the wrist-pin 10 of crank 11, towhich rod 9 is coupled, as best seen in Fig. 8. The eccentric 13 is soset with reference to the stroke of the crank 11 that the tool will belifted from contact with the leather just before the crank has reachedthe end of its outstroke, and to oscillate the headstock so as toreverse the positions of the tools and put the opposite tool incontact'with the leather just alter the crank has passed the center andthe return-stroke has been begun. The effect is to gradually remove onetool from the leather at the end of the stroke and put the other softlyand gradually in contact with the leather at the beginning of the nextstroke. When the head-stock stands vertical at the ends of the stroke,neither stone is in contact with the leather. The pressure of the stoneon the leather is greatest at mid-stroke. The eccentric is provided witha slot and a setscrcw 14, whereby its position with respect to the crankmay be varied somewhat. The connecting-rod 12 is not rigidly attached tothe head-stock. A screw threaded rod, 17, is coupled to the head-stockand plays through blocks 15 and 16, forming part of rod 12. On each sideof block 15 on rod 17 are cushionsprings 18 and 19, which abut,respectively, against nuts 20 and 21 on rod 17 These springs permit ofan elastic extension and contraction of the connecting-rod 12 to someextent, and thus allow the headstock to oscillate a little independentlyand adaptitself to variations in the thickness of the leather.

The headstock is constructed to carry two additional-stones, 24 24,mounted in tool-holders or clamps 22 22, pivoted or hinged at the points23 23. These increase the capacity of the machine. These clamps orholders jai'e constructed so that they may oscillate a little upon theirpivots or hinges if the variations in the thickness of the leatherrequire it, each being provided with a rubber cushion, 25, placed behindthe heel of the holder, which latter is held up to the cushion byineansof a bolt and nut, 26. The two cushions 25 are placed on oppositesides of the standard 3,

and one bolt, with nuts on each e11d,passes through both heels ofholders 22, both cushions 25, and the standard. Thus the holders arecushioned against movement in both directions. In order to show how theclamps 22 are mounted, I have broken away parts at the right in Fig. 5.The elampsthemselves may be constructed as usual or in any way. I makeno claim to their specific construction.

The carriage 7 is arranged so that two, four, or eight stones may be inoperation, as re: quired, and this is effected by locking part of thetools, as in the case of the present eonstruetion. To effect this thecarriage 7 is provided with a bridge or box, 27, in which the upper endof standard 3 oscillates. In this box are arranged sliding bars 28 and29, at.-

tarhed to rods 30;an'dactua'ted by l'evers 31' and handles 32. The bars28 and 29 may be slid into box 27 on each side of the standard 3, andthey will then prevent it from oscillating. Thus the stones will berendered inoperative; or either bar may he slid into the box and it willrender the stones inoperative I while moving in one direction, but leavethem I operative while moving in the other direction. In Fig. 4 I havebroken away the bridge on box 27 in order to better show the slidingbars in elevation.

dered inoperative by the slidin'gof both into box 27, the springs 18 and19 in eon ieeting-rod 12 will yield sufficiently to eompeii,-' sate forthe endwise movement of said rod imparted by eccentric In addition tothe stones, brushes 33 are mounted in the tool-holder. are fixed to aframe, 34, which is attached to the lower. ends of four sliding-rodsmounted in the tool-holder, andsprings on these rods serve to keep thebrushes pressed down elastically upon the leather. Nuts on the tops Whenthe tools are i-e'n u-s These brushes 1 of the rods limit the downwardmovement of the brushes. p

The brush or brushes 33 may be raised out of contact with the leather bythe means indicated in Figs. 4 and 5. The upper ends of the four rods 34pass through a plate, 35, on the top of the bridge 27, and a dovetailwedge, 27, is adapted to be moved in under plate 35 by a lever, 31,actuated by a rod, 32. This device I do not claim.

The peculiar construction of the head-stock herein shown enables metoplace the tools closer together than in former constructions", and Iobtain in consequence an increased length of stroke with the same throwof the crank.

I will now describe the construction of the tables on which the leatheris placed and their operative mechanism; p 1 a Two like tables areemployed, one of which may be under the tools while theleather beingplaced on the other. These tables are so constructed and mounted thatone can be moved out from under the tools and the other moved into itsplace in a moment. In bed;pl ate or framel is rotativel y mounted ashaft,4Q,carrying three tight and loose pulleys, 4 l. 3Qindicat'estwo-sets of bevel-gears, whereby rotary motion is communicated fromshaft 40 to avertieally-airanged shaft, 48, also mounted in thebed-plate. On the upper end of shaft 48 is can ried abevel-wheel,38,usually a smooth orfri'ctio'n'al driver, the purpose efwhich is to drive the feed's'crew of the table, as will be hereinafterexplained. The shaft is driven froin the main driving-shalt 42 throughthe medium of belts, as seen in, Fig. 2. In order to be able to retateshaft 40 in opposite directions at will, two belts, 41 41", one crossed,are employed, and a belt-shifter,whereby one 'of the belts may be thrownon a tight and the other on a loosepulley. This belt-shifter comprisesthe usual fork, 46,.fixed on the end of a verti; cal rod or shaft, ,45,mounted inbearingon the frame 1, a rod, 44, coupled to a craukrarinonshaft 45, and ahandl'e, 43, coupled to the other end of rod 44. Thisarrangement of the belts, pulleys, and belt shifter is a well-knowndevice, and I do iiotelaiin it. h I U The two tables and their carriagesare eon stru'c'ted aiikaanu it will only be necessary to describe one ofthem. A carriage, 47, is provided with outer wheels, 49, and innerwheels, 50, which run respectively on suitable parti-circular track51anfd 51, arranged eoncen't riewith the shaft 48 The in'iier end ofthis carriage 47 pivots ion and fits loosely on shaft 48, so; that saidcarriage may swing around said shaft'as a center, its wheels rell'ihgon, the tracks.

' Mounted on carriage 47 is another c anriage,

3 o a e: form, r mme with; safes.- wheels 55', which run on the sideframes of car; ri'age 47 afsftra'cks. This carriage is capable of amovement toward and from, or radial to, the shaft 48, and this movementis imparted through a screw, 37, rotativelymounted on carriage 47 andworking in a nut, 36, on the carriage 36. Rotary motion is imparted tothe screw through the medium of a bevel-pinion, 38, on the end of saidscrew, which pin ion is normally in peripheral contact with bevel-wheel38.

By means of the reversing mechanism be fore descrihednamely, the belts,belt-shiftcr, and tight and loose pulleysit will be obvious that screw37 may be rotated in either direction at the will of the operator andthe table 36 run in or out.

2 is the upper table or bed on which the leather is placed. This tableis rot-atively mounted by means of a central or axially-arranged stud,35, thereon, which fits into a socket-bearing in the carriage 36,whereby the table may be rotated in either direction at the will of theoperator. Thus ,it will be seen that the table 2 may be given threehorizontal movementsnamely, one on its axis, one radially to or from theshaft 48, and one concentrically around shaft 48. By reason of thesethree movements any part of the leather may be conveniently broughtunder the tools. By means of the radial movement produced by the screw37 the leather may at any time be moved in a direction opposite to thatof the tools, as will be well understood.

The mechanism for raising and lowering the table 2, whereby the leathermay be put into or out of contact with the tools at any time, will nowbe described.

On the circular carriage 36 is mounted a circular turntable, 56, whichis in the nature of a wheel with arms 57,and a central boss or hubthrough which the axial stud 35 of the table 2 passes. Thus theturn-table 56 is interposed between the table Z'and the carriage 36, andis rotat-ively mounted on the axis 35 of the table. The turntable may begiven an oscillatory movement on its axis by means of a bell-cranklever, 58, fulcrumed on the can riage 36 at 59. The short arm of thelever is slotted, (see Fig. 3,) and the slot in its end en gages a studor pin, 61, in the turn-table, and the long arm is provided with asegment-rack, 60, which meshes with a pinion, 62, on the same shaft withan operative hand-wheel, 63. The shaft of this pinion and hand-wheel isrotatively mounted on carriage 36. The rotation of the pinion 62, by itsengagement of the rack on the lever, moves the latter, and, through pin61, this lever moves the turntable on its axis. Fixed adjustably on theturntable are a number (six, as seen in Fig. 3) of inclined planes, 64:,which are shown enlarged and detached in Figs. 6 and 7. Each plane 6ihas two like cheeks and a space between them. In this space is mounted aroller, 65, the axes of which engage slots in brackets 6 on the carriage36. This slotted construction permits of some vertical movement of theroller. Slipped loosely on the axes of the roller are square collars aa, one on each side of the roller, which collars rest on the cheeks ofthe inclined planes The table 2 rests on and rolls on these rollers 65.Then the operator wishes to raise the table 2, he turns the turntable 56by means of the hand-wheel 63, so that the inclined planes 64 will bedriven under the collars a a on the axes of rollers 65 in the manner ofwedges, which serves to lift said rollers, and consequently the table 2,the stud 35 on the latter being capable of lifting in its socket. theturn-table the inclined planes are withdrawn and the table lowered.

It remains to be described how the sets, composed each of carriages andtables, are interchanged, one being under the tools while the other isstanding idle. In Fig. 3 the overhanging head of the machine is omitted,and from that set of carriages and tables under the tools the carriage36 and all carried thereby is omitted. From the other or idle set (seenat the left in Fig. 8) only the table 2 is omitted.

As the carriage 47 swings concentrically around shaft 48, itwill beobvious that the bevel pinions 38 on the ends of screws 37 will alwaysbe in contact with the wheel 38, whatever may be the position of thecarriage, unless means he provided for disengaging pinion 38 when itscarriage is standing idle. To effectthis disengagementthe bearing of thescrew 37, at its end next the pinion 38, is mounted onvertically-arranged standards 37, so that it may play a littlevertically, and is held down to its place by springs on said standards.A rounded projection, 53, on the said bearing projects downward throughcarriage 47, and when a set of carriages and tables is moved around fromunder the tools, the projection rides up on an incline, 52,011 the bedplate, and lifts pinion 38' out of contact with wheel 38. As the twosets of carriages, 850., are moved out from under the tools in oppositedirections, one to the right and one to the left, two of these inclines52 will be required. The tracks 51 and 51 are usuallya little more thana semicircle.

The wheel 38 and 38 are, preferably, -friction-wheels; but they might betoothed wheels.

Each set of carriages and tables is complete in itself, and the sets areconstructed alike.

Having thus described my invention, I claim- 1. In a machine fordressing leather, the combination, with an oscillating head-stock,substantially as described, of the main driv- By an opposite movement ofingshaft and crank and the conneeting-rods 9 and 12, coupled to. thecrank and head-stock, substantially as described, whereby the headstock, in addition to its reciprocating motion, has imparted to it alifting motion, for the purposes set forth.

.2. In a machine for dressing leather, the combination, with the table2, of the carriage 47, on which it is mounted, constructed to swingradially, and thetraeks on which said carriage 47 runs, all arrangedsubstantially as shown, whereby one table and carriage may be moved outof the way and another wheeled into its place, for the purposesspecified.

3. In a machine for dressing leather, the combination, with thereciprocating headstock, and its operating mechanism constructedsubstantially as described, of the table 2, its carriage 36, mounted ona track, and the screw mechanism, substantially as described, wherebythe table bearing the leather may be automatically moved in a directionopposite to that in which the tools move, for the purposes set forth.

4. In a machine for dressing leather, the combination of two sets oftables and their carriages and tracks, constructed and arrangedsubstantially as described ,and their operating mechanism, whereby onetable may be prepared while the other is under the tools, and

c the working capacity of the machine be thus having a segment-rack, 60,and the pinion 62 and its shaft, all arranged to operate substantiallyas set forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

SAM HALEY.

Witnesses:

CHARLES GILLIARD, A. B. CROSSLEY.

